Hydraulic lifting jack



FIG. 1 is a perspective view showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a left side view thereof, the right side view of the design being a mirror image of the left side view.

FIG. 4 is back view thereof; and,

FIG. 5 is a front view thereof.

The bottom view of the hydraulic lifting jack is not shown, and forms no part of the claimed design.

The broken lines show environmental structure, and form no part of the claimed design. 

The ornamental design for a hydraulic lifting jack, as shown and described. 